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Servostar Transformer Ind.Servostar Transformer Ind.
 Electronic Instruments
The high quality, cost efficient products manufactured by us are made available to clients on time, which has proved to be a key factor in growth of the company. We have got many big clients in the industry, and our products have got a wide and extensive use in many fields due to the wide range we manufacture. These have got diagonal as well as analogue system. Our range includes:


Servo Voltage Stabilizers
Servo Voltage Stabilizers

I. Rating
• 2 KVA to 25 KVA (I/P)
• 6 KVA to 2000 KVA (III/P)

II. InputRange
• 140V-280V (Single Phase)
• 160V-280V (Single Phase)
• 180V-280V (Single Phase)
• 240V-485V (Three Phase)
• 270V-485V (Three Phase)
• 300V-485V (Three Phase)

III. OutputRange
• 230V (Single Phase)
• 400V (Three Phase)

IV. Accuracy
• ± 1% (I/III Phase)

V. Frequency
• 47Hz-53Hz (Single Phase)
• 47Hz-53Hz (Three Phase)

VI. Power Factor Effect
• None

VII. Wave Form Distortion
• None added

VIII. Control
• Digital

IX. Response Time
• Less Than 10 ms.

X. Correction Rate
• 15V-40V/Sec.

XI. Display
• Digital / Analogue

XII. Log book
• Memory(Non-volatile)
• No. of Hrs. of operation on mains
• Peak Current demand
• Nos. of Abnormal High Voltage cut-off events.
• Nos. of Abnormal Low Voltage cut-off events.
• No.of Hrs.of operation on DG

XIII.Programmable Features(Through two parallel way reset table passwords)
• HV cut-off set
• LV cut-off set
• O/L trip set
• Time delay set
• Operating mode (auto / manual)

XIV. Cooling
• Air / Oil Cooled

XV.Protection
• Automatic Switch-Off against:
• Under / Over-Voltage
• Over-Load/Short - Circuit
• Single Phasing
• Surge Protection
• Lightning Protection

XVI. Efficiency
• 97%




Air Cooled Servo Stabilizers

The Air Cooled Stabilizers manufactured by us are automatic line voltage corrector which uses synchronous motor in close loop control. These also have provision for manual correction of voltage which is introduced on client's requirement.

Rating:

Single phase unit: 1 KVA– 25 KVA
Three phase unit: 6 KVA– 200 KVA

Nominal Output Voltage:

Single phase unit: 230 V
Three phase unit: 400 V

Voltage Correction Rate:

Air Cooled: 10-25 V/ Sec in Single Phase and 15-40 V/ Sec in Three Phase

Efficiency:

97% in both the cases


Air Cooled Servo Stabilizers


Online / Offline UPS
Online / Offline UPS

Range1 KVA to 10 KVA, Single Phase
5 KVA to 50 KVA, Three Phase
DesignModular for easy servicing
Tropicalized to suit any working condition
InputNormal Voltage, 160 Volt (AC) to 280 Volt (AC) Single Phase, 270 Volt (AC) to 470 Volt (AC) Three Phase
Nominal Frequency45 Hz to 55 Hz
DC Voltage
(50 KVA & Above)
(10 KVA to 45 KVA)
(1KVA to 7.5 KVA)

432 Volt
360 Volt / 384 Volt
48Volt /60Volt /120Volt/180Volt
DC Voltage (Optional)As per customer's requirement
Output (Technology)IGBT
Output Voltage230Volts AC (Single Phase)
400/415 Volts AC (Three Phase)
400/415 Volts AC (Three Phase)Servers, Computer work stations, Network equipments. Telecom & Cellular equipments. Automatic Teller machines. Medical equipments, Fire protection equipments. Special Purpose machines.




Isolation Transformers

Our Isolation Transformers isolates the equipments from noisy power line hence providing a better option to clients. These remove power line noise, surges, spikes and transients.

Other Features :

• High insulation resistance
• Provide complete electromagnetic and electrostatic shielding

Applications:

They have got use in Analytical Instruments, CNC Machines, Computers & Peripherals, Communication Equipments, Medical Instruments etc.

Other Specifications:

Input voltage: 220 V
Output voltage: 220 V
Frequency: 50 hz
Construction: As per ISO- 2026
Lamination: Cargo
Losses: 5%


Isolation Transformers


Phase & Neutral Balance System
Phase & Neutral Balance System

Phase & Neutral Balance System: Phase & Neutral Balance System: Phase & Neutral Balancing System is a three-phase system, which is installed at the low voltage supply line between phases and neutral i.e., parallel to the impedances. PNBS due to its magnetic symmetry tries to establish neutral point symmetrical with respect to the phase voltages. Thus, it equalizes the voltages in all the three phases and minimizes the neutral current.

Insurance Against Neutral Break: Due to any break in neutral connection, a consumer gets 415 Volts instead of 230 Volts. This damages most of the Electrical, Electronic, Telecom equipments and Household appliances. PNBS continues to provide neutral, protecting valuable equipment / appliances against any such damages.

Capacity of PNBS:

Capacity of PNBS In a balanced Three Phase system the current flowing through the neutral should be zero. However, it is practically not possible to distribute & ensure equal loading of each phase. Uneven loading on the phases, causes unbalanced phase voltage, phase distortion and excessive current flowing through the neutral, which results in loss of energy. PNBS corrects this situation. In a balanced Three Phase system the current flowing through the neutral should be zero. However, it is practically not possible to distribute & ensure equal loading of each phase. Uneven loading on the phases, causes unbalanced phase voltage, phase distortion and excessive current flowing through the neutral, which results in loss of energy. PNBS corrects this situation.
The PNBS equalizes the phase voltage, maintains phase angle symmetry and minimizes the neutral current. The capacity of PNBS is therefore defined in terms of its ability to correct the error measured in terms of the neutral current. The capacity of the PNBS required is dependent on the situation, at a particular location.




Battery Protectors

Specifications of Battery Protector

1. Operating Voltage: 24-72 V DC

2. Cut-off Voltage: @ 1.75 V per cell

3. Pre alarm before disconnection of battery: Audio Provided

4.DC Contactor used: Prestolite UK make SPST Connector

5. Measurement of battery voltage & current: Through 72 x 72 mm Digital DC V/A. Meter for charging current and discharging current.

6.Display of the meter: 3½ digital display

7. Re-connection: Batteries get automatically connected to the power plant as
soon as mains are resumed.

8.Suitable for rural as well as urban telecom areas.


Battery Protectors


Automatic Voltage Stabilizers
Automatic Voltage Stabilizers

Specification Of Automatic Voltage Stabilizer:

1. Input range from 160- 280, 140- 280, 110- 275 & 90- 280 Volts
2. Output Voltage 200- 240
3. Load capacity range from 1 KVA to 10 KVA in single phase & 3 KVA to 30 KVA in three phase.
4. Completely copper bound Buck / Boost Transformer
5. Special grade silicon steel lamination (core) for transformer
6. Completely solid-state control card.
7. Electromagnetic realy for reliable performance
8. Digital / Analogue volt/ Amp. Meter

Optional Features:

1. Under / Over Voltage % time delay protection
2. Over current protection
3. By-pass & Single Phase Preventer




Step Down Transformers

We offer high quality Step Down Transformers. These are offered with the following features:

• 100 Watt maximum capacity heavy-duty continuous use transformer
• One grounded outlet in front of unit (accepts 3 or 2 prong US and Euro plugs)
• Hard wired
• Durable design with a heavy-duty cord


Step Down Transformers


Variable Transformers
Variable Transformers

We offer high quality Voltage Transformers. These are offered with the following features:

• Panel mount, single phase (fixed and adjustable shaft)
• Enclosed cord and plug
• Metered
• Fully enclosed
• Ganged


Servo Voltage Stabilizers
Air Cooled Servo Stabilizers
Online / Offline UPS
Isolation Transformers
Phase & Neutral Balance System
Battery Protectors
Automatic Voltage Stabilizers
Step Down Transformers
Variable Transformers

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